CVE-2024-42244

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Source
https://cve.org/CVERecord?id=CVE-2024-42244
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-42244.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-42244
Downstream
Related
Published
2024-08-07T15:14:30.359Z
Modified
2026-03-11T07:46:02.783769Z
Summary
USB: serial: mos7840: fix crash on resume
Details

In the Linux kernel, the following vulnerability has been resolved:

USB: serial: mos7840: fix crash on resume

Since commit c49cfa917025 ("USB: serial: use generic method if no alternative is provided in usb serial layer"), USB serial core calls the generic resume implementation when the driver has not provided one.

This can trigger a crash on resume with mos7840 since support for multiple read URBs was added back in 2011. Specifically, both port read URBs are now submitted on resume for open ports, but the context pointer of the second URB is left set to the core rather than mos7840 port structure.

Fix this by implementing dedicated suspend and resume functions for mos7840.

Tested with Delock 87414 USB 2.0 to 4x serial adapter.

[ johan: analyse crash and rewrite commit message; set busy flag on resume; drop bulk-in check; drop unnecessary usbkillurb() ]

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42244.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d83b405383c965498923f3561c3321e2b5df5727
Fixed
932a86a711c722b45ed47ba2103adca34d225b33
Fixed
b14aa5673e0a8077ff4b74f0bb260735e7d5e6a4
Fixed
1094ed500987e67a9d18b0f95e1812f1cc720856
Fixed
5ae6a64f18211851c8df6b4221381c438b9a7348
Fixed
553e67dec846323b5575e78a776cf594c13f98c4
Fixed
c15a688e49987385baa8804bf65d570e362f8576

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-42244.json"